Table 3. Estimated false positive (FPR) and false negative (FNR) adjudication rates (%, s.e.) by adjudicator, overall, and by study arm.
| Data source | ||||||||
|---|---|---|---|---|---|---|---|---|
| Country | Error rate | Adj. #1 | Adj. #2 | Adj. #3 | Adj. #4 | Overall | Screening arm | Control arm |
| Netherlands | FPR (%) | 0.4 (0.3) | 0.5 (0.6) | 1.8 (0.7) | 0.5 (0.5) | 0.9 (0.3) | 0.7 (0.3) | 1.3 (0.7) |
| FNR (%) | 10.4 (2.5) | 0.0 (0.0) | 3.5 (1.5) | 10.0 (3.0) | 7.0 (1.3) | 7.4 (2.0) | 6.4 (1.7) | |
| Belgium | FPR (%) | 0.7 (0.6) | 1.2 (0.8) | 0.7 (0.5) | 0.0 (0.0) | 0.6 (0.3) | 0.5 (0.3) | 0.6 (0.4) |
| FNR (%) | 4.5 (2.5) | 5.9 (3.5) | 7.4 (3.3) | 6.0 (3.2) | 6.0 (1.6) | 7.7 (2.7) | 4.7 (2.0) | |
| Sweden | FPR (%) | 0.8 (0.6) | 0.8 (0.6) | 2.8 (1.1) | – | 1.5 (0.5) | 2.2 (1.1) | 1.7 (0.8) |
| FNR (%) | 3.7 (1.5) | 0.6 (0.7) | 1.3 (0.9) | – | 1.9 (0.7) | 0.6 (0.4) | 3.1 (1.1) | |
| Finland | FPR (%) | 1.9 (1.1) | 1.2 (0.9) | 6.2 (1.9) | – | 2.5 (0.6) | 2.4 (0.8) | 2.7 (0.9) |
| FNR (%) | 4.9 (1.3) | 1.5 (0.8) | 1.2 (0.7) | – | 3.1 (0.9) | 3.3 (1.4) | 3.1 (1.1) | |
| Switzerland | FPR (%) | 20.8 (7.7) | 5.6 (3.4) | 4.4 (3.1) | 0.0 (0.0) | 6.9 (2.4) | 2.2 (1.6) | 20.7 (5.5) |
| FNR (%) | 6.2 (6.7) | 5.9 (5.7) | 10.4 (6.6) | 0.0 (0.0) | 7.5 (4.0) | 10.7 (5.7) | 0.0 (0.0) | |
Note: results for individual adjudicators (Adj) #1 to #4 are from model 1; the overall results are from model 2; the screening and control arm results are from model 3.